CVE-2026-30877

critical · 9.1

baserCMS is a website development framework. Prior to version 5.2.3, there is an OS command injection vulnerability in the update functionality. Due to this issue, an authenticated user with administrator privileges in baserCMS can execute arbitrary OS commands on the server with the privileges of the user account running baserCMS. This issue has been patched in version 5.2.3.

9.1

CVSS

1.5%

EPSS (exploit prob.)

73rd

EPSS percentile

2026-03-31

Published

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

Weaknesses

CWE-78

Affected products

Vendor	Product	Affected versions
basercms	basercms	< 5.2.3

Check a specific version with /api/v1/cve/match.

References

https://basercms.net/security/JVN_20837860
https://github.com/baserproject/basercms/releases/tag/5.2.3
https://github.com/baserproject/basercms/security/advisories/GHSA-m9g7-rgfc-jcm7

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2026-30877